Tomorrow I go in for my third joint replacement in jus a little over a year year! I am not worried about the surgery but I am a little annoyed about going through the recovery process again! I keep my frustrations to myself as I do appreciate that I am truly lucky. Knee, hip, and shoulder replacements are routine, safe and improve mobility. The next couple of days will be slow but every day following will see steady improvement in my mobility.
Practical Application ISO 4406
I think this oil cleanliness thing is going to boil down to ones personal resolve. The information is there but applying it I believe will test your commitment to the machine. Implementation would involve building or buying a prefilter or purchase of an "ISOCLEAN" oil. Then installing a single digit micron bypass system. A good deal of testing and about 99.9% of you are saying at that point....yea.....not my cuppa tea. So what can you do?
You already did the first step. Get educated and leave the bias at the door. Be aware of the its, cleanliness, importance.
Do your own work if you can. Keep the equipment clean. Not just your funnel but the engine bay. Use sealed containers. Think it through.
I believe you will find, as I did, that the tightest absolute full flow filters (Beta 200) will be around 20 micron. That will yield on average a Beta 75 of 10-15 micron. They are few in number by brand and price point. Loose filters are a dime a dozen and even the best brands have lines of loose filters. Some cleverly marketed as "Extended Service". Others will market flow over efficiency. But I think the take away once informed is that the extra cost of the best offered is a bargain. There are cheaper filters with good efficiency that are equal in performance to niche brands with big prices. Your Quick Lube is about a 40 micron unit. This is where your dealer is a plus. the AC-Delco filter is a good step up from those places. Even better if you specify the UPF line.
Be skeptical of marketing. Buying an oil that is made from GTL advertised as the cleanest base oil is using a truth to support a lie. While GTL's are made from debris free gas the processing equipment and post handling is just like any other oil. It also ignores the fact that PAO's and Esters are also gas in origin. Any private prescreening testing you would do, and some have done, would yield a result only good for the batch you tested. AMSOIL and Schaeffer's have built a reputation for paying attention to this detail.
Context. Cold starts account for at least 75%, or more, of an engines wear. But of the remaining 25% ish, over 80% is caused by particle count. Now where do we find high milage motors that use this type of information efficiently? OTR trucking!
Now, anyone want to build a prefilter or off line cleaning system anyway?
Does anyone know if the GM 85628205 and 85628208 are interchangeable?
The 85628205 is an assembly of the seals mated to a thin metal shim and the 85628208 appear to be just the rubber seals without being an assembly.
The reason I am asking is that I'm installing a PPE Thermal Bypass Valve and it doesn't come with seals.
Thanks @newdude, guess I'll keep looking. Test driving so many trucks that have obvious things broken, I'm thinking "if they couldn't even be bothered to fix the power seat," what else is broken".
Just drove a 2021 where the power seat motor was grinding/binding and wouldn't do anything but make a terrible sound.
An owner that puts dents on the bumper, doesn't fix a seat motor, and had spotty service intervals (along with missing major services) doesn't give me the best of confidence.
Amazed at the number of people that will finance a $60k+ truck, run it into the ground, then trade with a loan balance (every single one had "loan/lien reported" on the CARFAX at the last year of registration).
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